With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
ipivcDnaDefaultSendToNetworkPacketSize
ipivc Dna Default Send To Network Packet Size
This attribute indicates the default local send packet size from DTE to network for all calls using this particular DNA.
Back to Nortel-Magellan-Passport-IpiVcMIB MIB page.
IPHost Network monitor allows you to monitor ipivcDnaDefaultSendToNetworkPacketSize on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel speech servers right now.